12th Class
Mathematics
Sample Paper
Maths Olympiad Model Test Paper-12
question_answer
If \[x\in \left( \frac{-\pi }{2},\,\,\frac{\pi }{2} \right),\] then the value of \[{{\tan }^{-1}}\left( \frac{\tan x}{4} \right)+{{\tan }^{-1}}\,\,\left( \frac{3\,\,\sin \,\,2x}{5+3\,\,\cos \,\,2x} \right)\]is ________.